Home / 40,708.74-61,085.79-21,988.38

Finding the Fourth Proportional to 40,708.74, 61,085.79 and 21,988.38

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Solution

The fourth proportional to 40,708.74, 61,085.79 and 21,988.38 is: 32,994.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,708.74 : 61,085.79 = 21,988.38 : x
  2. Step 2: Convert to fraction form
    40,708.74/61,085.79 = 21,988.38/x
  3. Step 3: Cross multiply
    40,708.74x = 61,085.79 × 21,988.38
  4. Step 4: Simplify right side
    40,708.74x = 1,343,177,563.12
  5. Step 5: Solve for x
    x = 1,343,177,563.12/40,708.74
  6. Step 6: Final answer
    x = 32,994.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.